With sea level rising, the city faces costs ranging from $140 million to $240 million to improve road drainage and build taller sea walls, City Manager Lee Feldman said Tuesday.

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Broward County on Tuesday will consider economic incentives for two companies that would create a total of 400 jobs.

Broward County on Tuesday will consider economic incentives for two companies that would create a total of 400 jobs.

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Broward County on Tuesday will consider economic incentives for two companies that would create a total of 400 jobs.

Broward County on Tuesday will consider economic incentives for two companies that would create a total of 400 jobs.

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After Ferris Finley, 43, of Fort Lauderdale was found fatally shot in his truck in April, the Broward Sheriff's Office has made two arrests in the murder case.

After Ferris Finley, 43, of Fort Lauderdale was found fatally shot in his truck in April, the Broward Sheriff's Office has made two arrests in the murder case.

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CBS Miami’s Joan Murray reports.

CBS Miami’s Joan Murray reports.

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A gunman shot at a deputy early Monday in Deerfield Beach, leading to a daylong manhunt and a warning that motorists steer clear of a major intersection.

The shooting happened about 3 a.m. in the 4200 block of North Dixie Highway, north of Sample Road.

A gunman shot at a deputy early Monday in Deerfield Beach, leading to a daylong manhunt and a warning that motorists steer clear of a major intersection.

The shooting happened about 3 a.m. in the 4200 block of North Dixie Highway, north of Sample Road.

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A man hit by a Tri-Rail train Tuesday morning is being labeled as a suicide, Hollywood Police say.

A man hit by a Tri-Rail train Tuesday morning is being labeled as a suicide, Hollywood Police say.

“We are the Venice of America,” Feldman said. “My goal is not to be the Atlantis of America.”

A plan laying out the projects and costs is expected to be complete in December, Feldman said. He said the city likely will launch a 30-year bond program, where the debt is repaid with the rising stormwater fees. The fees appear on monthly water bills, and pay for improvements like drainage systems, retention areas where water can collect, sea walls, and other projects to keep water where it belongs.

The steep cost for stormwater improvements is in addition to more than $1.4 billion in needed water and sewer work identified recently by a consultant.

If the stormwater rates are changed as proposed, single family homeowners would benefit the most. Currently, they bear a larger burden of costs than do condo owners.

“We are the Venice of America. My goal is not to be the Atlantis of America.”— Fort Lauderdale City Manager Lee Feldman

The rate change would shift costs so that condo owners, and owners of stores, offices, and government properties pay more.

The new rates would be based on how much traffic a property generates — a novel, relatively untested method that city commissioners said they aren’t sure they agree with. The idea was proposed by consultant Burton & Associates, Inc., which conducted a rate study for the city. Commissioners rejected the suggestion last summer but subsequently agreed to reconsider.

The idea, Feldman said, is that most drainage or stormwater work aims to keep roads clear for traffic. A property that generates a lot of traffic, like a supermarket, has more to gain from drainage improvements than one that doesn’t, like a warehouse, he said.

Commissioners and the mayor expressed doubts but said they know they’ve got enormous costs, and someone has to pay them.

“I’m just not ready to pull the trigger on this,” Commissioner Bruce Roberts said, suggesting two city advisory boards consider the idea next. “I’d like to have more eyes on it.”

Mayor Jack Seiler said he’d like to consider a rate that’s a mix of traffic and the existing calculation, which is based on how much of a property is impervious, preventing water from draining.

Under last year’s rates, a single family homeowner paid $6 a month. That would remain unchanged, under what’s proposed.

But a condo owner paying $1.06 a month would see that rise 300 percent to $4.18 a month.

A supermarket owner pays $178.42 now, but would pay $758.64.

A government entity that pays $283.58 now would pay $4,602.15.

The National Oceanic and Atmospheric Administration says sea level has been rising over the past century, and the rate is increasing.

According to the Southeast Florida Regional Compact Climate Action Plan, updated in October 2015, sea level will rise 6 to 10 inches by 2030, 14 to 26 inches by 2060 and 31 to 61 inches by 2100.

In other action, Fort Lauderdale commissioners Tuesday:

* CANAL FEE: Informally nixed the idea of charging a special fee to canal-front homeowners for dredging canals. A majority of commissioners said they’d gotten negative feedback about the proposal.

* SWIM COMPLEX: Agreed, as the Community Redevelopment Agency board, to begin a competitive bid process for renovation of the city’s aquatic complex at the beach. The aim is to restore it to standards required for swim meets.

* MARINA: Postponed to July 11 a vote on a lease with Suntex Marina Investors at the publicly owned Las Olas Marina at Fort Lauderdale beach.

* CITY ATTORNEY: Gave city attorney Cynthia Everett a 3 percent merit raise on her base salary of $230,000. Commissioners said her performance has improved over the past year.

* LAWSUIT: Settled for $90,000 a lawsuit filed by cyclist Gary Groenewold, who was injured when he hit a pothole on Southeast Sixth Street.